Though less excavated than Edzná, Uxmal or Calakmul, Santa Rosa Xtampak is considered to be the largest and most important site in the Chenes region, and was perhaps the area's one-time capital. The long drive in means you're likely to have the ruin entirely to yourself, and (for now anyway) it's off the bus-tour circuit. The excavated area is compact and impressive, with ornate Chenes-style decorations surrounding temple doors, and around 50 chaltuns (wells).